# A Multicentre, Randomised, Open-Label Study To Compare The Efficacy And Safety Of Azithromycin For 5 Days With Those Of Amoxicillin-Clavulanic Acid In Patients With Chronic Bronchitis

> **NCT00649831** · PHASE3 · COMPLETED · sponsor: **Pfizer** · enrollment: 250 (estimated)

## Conditions studied

- Bronchitis, Chronic

## Interventions

- **DRUG:** Amoxicillin/clavulinic acid
- **DRUG:** Azithromycin

## Key facts

- **NCT ID:** NCT00649831
- **Lead sponsor:** Pfizer
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2002-10
- **Primary completion:** —
- **Final completion:** 2003-06
- **Target enrollment:** 250 (ESTIMATED)
- **Last updated:** 2008-10-21


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00649831

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00649831, "A Multicentre, Randomised, Open-Label Study To Compare The Efficacy And Safety Of Azithromycin For 5 Days With Those Of Amoxicillin-Clavulanic Acid In Patients With Chronic Bronchitis". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT00649831. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*